212 NORTHERN ZOOLOGY. 



(282) ,'$. * Chrysomela Bigsbyana. Bigsbys Chrysomela. 



C. ( Bigsbyana J viridis, palpis, pedibus, antennisque rvfis ; prothorace antice et lateribus rvfescentibus ; elutris pallide rufescen- 

 tibus, vitta suturali, macula magna fracta biloba humerali, punctisque pluribus, nigris aut nigro-viridibus. 



Bigsby's Chrysomela, green, palpi, antenna, and legs rufous; anterior margin and sides of the prothorax, reddish ; elytra 

 pale-red, with a sutural stripe, a humeral broken bilobed spot, and several dots black or dark-green. 



Length of the body 4 lines. 



A single female specimen taken in Canada by Dr. Bigsby. 



DESCRIPTION. 



Colour and sculpture of the body like those of the preceding species, from which C. Bigsbyana 

 differs principally in having the sides and anterior margin of the prothorax reddish-yellow : the 

 elytra are of the same colour, but the suture itself, especially at the base, a stripe parallel to it, a 

 large humeral bilobed spot, the interior lobe of which is obtusangular or broken, and several irregular 

 dots and spots on the elytra are black-green. 



(283) 4. Chrysomela multipunctata. (Say.) Many-dotted Chrysomela. 



Chrysomela multipunctata. Say. Journ. Nat. S. Plrilad. Ill, ii, 450, 2. 

 Length of the body 44; lines. 



Taken frequently in the Journey from New York to Cumberland-house. 



DESCRIPTION. 



Body, head, antennae, and legs ferruginous. Prothorax pale-yellow, with two posterior triangular 

 ferruginous spots with a dot of the same colour between them ; the punctures of the prothorax are 

 more numerous and smaller than in C. Philadelphia, &c. ; elytra yellowish- white ; suture and a 

 confluent stripe circumscribed with the double series of punctures, diverging towards the base of 

 the elytra, ferruginous ; surface covered with irregular greenish dots and short lines, as in the pre- 

 ceding species, a row of punctures marks the exterior side of the elytra, the interstice between it 

 and the margin is immaculate and impunctured, the rest of the elytrum being thickly covered with 

 scattered minute punctures. 



